"The Hobart Discovery Series Variable-Shade Auto-Darkening Welding Helmet features 9-13 variable shades with 1/12,000 of a second reaction time and adjustable sensitivity and delay controls. Weld and grind mode. Meets ANSI Z87.1-2010 standards. Adjustable Sensitivity Yes, sensitivity & delay controls, Power Supply CR2450 lithium battery, ANSI Approved Yes, View Area W x H in. 3 13/16 x 1 13/16, Variable Shades 9-13, light shade #4, CSE/CE Standard CE, CSA, Adjustable Fit Ratcheting headgear, Auto Darkening Yes, UV/IR Coated Lens Yes, Low Battery Indicator Yes, Welding Processes Weld, grind, Product Type Welding helmet, Battery Included Yes. Lightweight polyamide shell reduces fatigue over long periods of use Large 3.82in. x 1.81in. viewing area Adjustable ratcheting headgear for a comfortable fit 2 independent arc sensors are built in Lens frame accepts magnifying cheater lens not included Low battery indicator powered by CR2450 Lithium battery included Includes a pack of clear front and back lens covers"
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